$OpenBSD: patch-net_base_network_interfaces_posix_h,v 1.1 2017/03/14 12:18:54 robert Exp $
--- net/base/network_interfaces_posix.h.orig.port	Sun Mar 12 10:47:11 2017
+++ net/base/network_interfaces_posix.h	Sun Mar 12 10:47:19 2017
@@ -8,6 +8,8 @@
 // This file is only used to expose some of the internals of
 // network_interfaces_posix.cc to network_interfaces_linux.cc and network_interfaces_mac.cc.
 
+#include <sys/socket.h>
+
 #include <string>
 
 struct sockaddr;
